Notifications of major updates

According to feedback from earlier players, the following updates were made:
1：The number of tank confrontations increased from 6 V 6 to 15 V 15, and the battle became more intense.
2：improved and adjusted the map and lighting effects. The game screen is better.
3： improved and adjusted the computer AI. The computer became smarter and enhanced the challenge of the game.
4： has repaired some known BUG
5： adjusts the game numbers